WRG-28 is a selective, extracellularly acting DDR2 allosteric inhibitor with an IC50 of 230 nM. WRG-28 uniquely inhibits receptor-ligand interactions via allosteric modulation of the receptor. WRG-28 inhibits tumor invasion and migration, as well as tumor-supporting roles of the stroma, and inhibits metastatic breast tumor cell colonization in the lungs by targeting DDR2[1].
[1]. Grither WR, et al. Inhibition of tumor-microenvironment interaction and tumor invasion by small-molecule allosteric inhibitor of DDR2 extracellular domain. Proc Natl Acad Sci U S A. 2018 Aug 14;115(33):E7786-E7794.